<script type="text/javascript" src="https://images-na.ssl-images- amazon.com/images/G/01/cba/js/jquery.js"> </script>
<script type="text/javascript" src="https://images-na.ssl-images- amazon.com/images/G/01/cba/js/widget/widget.js">
</script> <form method=POST action="https://payments-sandbox.amazon.com/checkout/AEIOU1234AEIOU">
<input name="item_merchant_id_1" value="AEIOU1234AEIOU" type=hidden />
<input name="item_title_1" value="Red Fish" type=hidden />
<input name="item_description_1" value="A red fish packed in spring water." type=hidden />
<input name="item_price_1" value="19.99" type=hidden />
<input name="item_quantity_1" value="1" type=hidden />
<input name="item_fulfillment_network_1" value="MERCHANT" type=hidden />
<input name="item_sku_1" value="ABC123" type=hidden />
<input name="item_url_1" value="http://mydomain.com/items?ABC123" type=hidden />
<input name="item_category_1" value="Food" type=hidden />
<input name="item_weight_1" value="2" type=hidden />
<input name="item_weight_unit" value="lb" type=hidden />
<input name="item_merchant_id_2" value="AEIOU1234AEIOU" type=hidden />
<input name="item_title_2" value="Blue Fish" type=hidden />
<input name="item_price_2" value="49.99" type=hidden />
<input name="item_quantity_2" value="1" type=hidden />

<input name="item_fulfillment_network_2" value="AMAZON_NA" type=hidden />
<input name="item_sku_2" value="DEF456" type=hidden />
<input name="item_condition_2" value="New" type=hidden />
<input name="item_url_2" value=" http://mydomain.com/items?DEF456" type=hidden />
<input name="item_image_url_2" type="hidden" value="http://img/8MP9Q.jpg" />
<input name="shipping_method_service_level_1" value="expedited" type=hidden />
<input name="currency_code" value="USD" type=hidden />
<!-- To use this code for testing on your own, re-calculate the signature-->
<input name="merchant_signature" value="1344-2520-8277" type=hidden /> 
<input alt="Checkout with Amazon Payments" src="https://payments.amazon.com/gp/cba/button?ie=UTF8&color=orange&background=white&cartOwn erId=AEIOU1234AEIOU&size=medium" type="image">
</form>